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Finding the Fourth Proportional to 69,334.60, 104,233.92 and 54,719.68

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Solution

The fourth proportional to 69,334.60, 104,233.92 and 54,719.68 is: 82,262.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,334.60 : 104,233.92 = 54,719.68 : x
  2. Step 2: Convert to fraction form
    69,334.60/104,233.92 = 54,719.68/x
  3. Step 3: Cross multiply
    69,334.60x = 104,233.92 × 54,719.68
  4. Step 4: Simplify right side
    69,334.60x = 5,703,646,747.55
  5. Step 5: Solve for x
    x = 5,703,646,747.55/69,334.60
  6. Step 6: Final answer
    x = 82,262.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.